Straightness detection device

Abstract

The utility model provides a straightness detection device which comprises the components of a base which is used for fixing the straightness detection device on the surface of a detected object; the supporting part is arranged on the base and is used for mounting a laser; the first adjusting part is arranged on the supporting part, and the first adjusting part can adjust the inclination angle of the laser on the supporting part; and the second adjusting part is arranged between the base and the supporting part, and the second adjusting part can drive the supporting part to rotate in the circumferential direction relative to the base. According to the technical scheme provided by the utility model, the problem of large calculation error caused by low adjustment precision of the straightness detection device in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of length measurement, in particular to a straightness detection device. Background Art

[0002] At present, in the manufacturing process of pressure-bearing equipment, according to relevant national regulations and standards, high requirements are placed on the straightness of the equipment surface, and straightness testing is a process that must be completed.

[0003] In the prior art, there are the following working methods: one is that the inspector temporarily welds a pole at the two ends of the inspected section, the poles at both ends are of the same height, a reference line is drawn at the top of the pole, and then multiple monitoring points are selected on the inspection section, and the distance between the selected monitoring points and the upper reference line is measured and read with a nuclear ruler, and the straightness of the inspected equipment is judged by summarizing and comparing such multiple values; the other is based on the above inspection method, a laser emitting light source is set at one end of the inspected workpiece to replace the physical straight line. However, the above method has a small adjustment range and low adjustment accuracy, resulting in a large error in the final calculation result. Utility Model Content

[0004] The utility model provides a straightness detection device to solve the problem that the adjustment accuracy of the straightness detection device in the prior art is low, resulting in large calculation errors.

[0005] The utility model provides a straightness detection device, which comprises: a base, used to fix the straightness detection device on the surface of a measured object; a support part, which is arranged on the base and is used to install a laser; a first adjustment part, which is arranged on the support part and can adjust the inclination angle of the laser on the support part; and a second adjustment part, which is arranged between the base and the support part and can drive the support part to rotate in a circumferential direction relative to the base.

[0006] Further, the laser extends in a horizontal direction, and the first adjustment part can adjust the inclination angle of the laser relative to the horizontal plane.

[0007] Furthermore, the first adjustment portion includes a conical hole and a first adjustment component. The extension direction of the conical hole is the same as that of the laser. There is a gap between the laser and the inner wall of the conical hole. The conical hole has a first end and a second end that are relatively arranged. The diameter of the conical hole gradually increases from the first end to the second end. The first adjustment component can adjust the inclination angle of the laser in the conical hole.

[0008] Furthermore, the first adjustment component includes a first knob and a support spring, which are respectively arranged on both sides of the laser, and the first knob is radially penetrated on the conical hole. The first knob is arranged close to the second end, and the support spring is respectively abutted against the inner wall of the laser and the conical hole. The first knob can move in the conical hole, and the first knob cooperates with the support spring to adjust the inclination angle of the laser.

[0009] Furthermore, the support part includes a sleeve, a support rod and a second knob. The sleeve and the support rod are arranged in a vertical direction. The tapered hole penetrates the sleeve in a horizontal direction. The first adjustment component is arranged in the sleeve. One end of the support rod is rotatably connected to the sleeve. The second knob is located between the support rod and the sleeve. The second knob can fix the relative position of the support rod and the sleeve. The other end of the support rod is connected to the second adjustment part.

[0010] Furthermore, the support part also includes: a mounting seat and a first fastener, the mounting seat is arranged in the conical hole, the mounting seat is used to place the laser, the first fastener is used to fix the position of the mounting seat in the conical hole, the first adjustment part is arranged between the mounting seat and the sleeve, and the first adjustment part can adjust the inclination angle of the mounting seat; the second fastener is arranged on the mounting seat, and the second fastener is used to fix the position of the laser in the mounting seat.

[0011] Furthermore, the second adjustment part includes a support, a mounting platform and a second adjustment component, the support is connected to the base, the mounting platform is rotatably arranged on the support, the support part is connected to the mounting platform, and the second adjustment component is used to adjust the rotation angle of the mounting platform relative to the support in the circumferential direction.

[0012] Furthermore, the second adjustment assembly includes a coarse adjustment rod and a first stud, the coarse adjustment rod is connected to the mounting platform, the coarse adjustment rod can drive the mounting platform to rotate, and the first stud is arranged between the mounting platform and the support, and the first stud can fix the position of the mounting platform.

[0013] Furthermore, a limiting protrusion is provided on the side wall of the mounting platform, and the second adjustment component also includes a fine-tuning screw and a second stud, which are respectively located on both sides of the limiting protrusion, and the fine-tuning screw and the second stud are respectively threadedly connected to the support, one end of the fine-tuning screw is used to abut against one side of the limiting protrusion, and one end of the second stud is used to abut against the other side of the limiting protrusion, and the second stud cooperates with the fine-tuning screw to adjust and fix the rotational position of the mounting platform.

[0014] Furthermore, the base is a magnetic structure.

[0015] By applying the technical solution of the utility model, the straightness detection device is fixed on the surface of the object to be measured through a base, the support part is used to install the laser, and the first adjustment part is also arranged on the support part, so that the support part can provide support for the laser while adjusting the inclination angle of the laser on the support part. The second support part is arranged between the base and the support part, and can drive the support part to rotate circumferentially relative to the base, thereby driving the laser to rotate circumferentially relative to the base. Through the above arrangement, the first adjustment part and the second adjustment part cooperate with each other to adjust the inclination angle and circumferential rotation angle of the laser, thereby increasing the adjustment range of the laser, thereby improving the adjustment accuracy of the device to the laser, so as to reduce the calculation error of the straightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 The structure diagram of the straightness detection device provided by the utility model is shown;

[0018] Figure 2 A cross-sectional view showing the assembly of the support portion and the first adjustment portion provided by the utility model;

[0019] Figure 3 The schematic diagram of the structure of the second adjusting part provided by the utility model is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Base;

[0022] 20. Support part; 21. Sleeve; 22. Support rod; 23. Second knob; 24. Mounting seat; 25. First fastener; 26. Second fastener; 27. Connecting seat;

[0023] 30. first adjusting portion; 31. tapered hole; 32. first knob; 33. supporting spring;

[0024] 40. second adjustment part; 41. support; 42. mounting platform; 43. coarse adjustment rod; 44. first stud; 45. fine adjustment screw; 46. second stud; 47. limit protrusion;

[0025] 50. Laser. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] like Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a straightness detection device, which includes: a base 10, a support part 20, a first adjustment part 30 and a second adjustment part 40. Among them, the base 10 is used to fix the straightness detection device on the surface of the object to be measured; the support part 20 is arranged on the base 10, and the support part 20 is used to install the laser 50; the first adjustment part 30 is arranged on the support part 20, and the first adjustment part 30 can adjust the inclination angle of the laser 50 on the support part 20; the second adjustment part 40 is arranged between the base 10 and the support part 20, and the second adjustment part 40 can drive the support part 20 to rotate in the circumferential direction relative to the base 10.

[0028] By applying the technical solution of the utility model, the straightness detection device is fixed on the surface of the object to be measured through the base 10, the support part 20 is used to install the laser 50, and the first adjustment part 30 is also arranged on the support part 20, so that the support part 20 can provide support for the laser 50 while adjusting the inclination angle of the laser 50 on the support part 20. The second support part 20 is arranged between the base 10 and the support part 20, and can drive the support part 20 to rotate in the circumferential direction relative to the base, thereby driving the laser 50 to rotate in the circumferential direction relative to the base. Through the above arrangement, the first adjustment part 30 and the second adjustment part 40 cooperate with each other to adjust the inclination angle and the circumferential rotation angle of the laser 50, thereby increasing the adjustment range of the laser 50, thereby improving the adjustment accuracy of the device to the laser 50, so as to reduce the calculation error of the straightness.

[0029] Among them, the laser 50 extends in the horizontal direction, and the first adjustment part 30 can adjust the inclination angle of the laser 50 relative to the horizontal plane. Such a configuration allows the laser emitted by the laser 50 to extend in the horizontal direction, which is convenient for detecting the straightness of the surface of the object to be measured. The inclination angle of the laser 50 relative to the horizontal plane is adjusted by the first adjustment part 30, so that the laser emitted by the laser 50 can always remain in a horizontal state, so as to improve the accuracy of the straightness detection result. In the present application, the direction of the X-axis and the Y-axis is the horizontal direction, the plane formed by the X-axis and the Y-axis is the horizontal plane, and the direction of the Z-axis is the vertical direction.

[0030] Further, the first adjustment part 30 includes a conical hole 31 and a first adjustment component. The extension direction of the conical hole 31 is the same as that of the laser 50, so that the laser 50 is conveniently placed. There is a gap between the laser 50 and the inner wall of the conical hole 31, so as to adjust the tilt angle of the laser 50. The conical hole 31 has a first end and a second end that are relatively arranged. The diameter of the conical hole 31 gradually increases from the first end to the second end. The first adjustment component can adjust the tilt angle of the laser 50 in the conical hole 31, so that it is convenient to operate. In the present application, the end of the laser 50 emitting the laser is placed at the second end of the conical hole 31. The above arrangement can reduce the range of movement of the laser 50 in the first section and increase the adjustment angle of the laser 50 at the second end, thereby reducing the adjustment range of the tilt angle of the laser 50 by the first adjustment component, and at the same time can ensure the stability of the laser 50 when placed and adjusted in the conical hole 31.

[0031] Specifically, the first adjustment assembly includes a first knob 32 and a support spring 33, which are respectively arranged on both sides of the laser 50, and the first knob 32 is radially penetrated on the tapered hole 31, and the first knob 32 is arranged near the second end, and the support spring 33 abuts against the inner wall of the laser 50 and the tapered hole 31, respectively, and the first knob 32 can move in the tapered hole 31, and the first knob 32 cooperates with the support spring 33 to adjust the tilt angle of the laser 50. When the first knob 32 is tightened, the support spring 33 will be in a compressed state and support the laser 50, and the first knob 32 will drive the laser 50 to move downward relative to the horizontal plane in the tapered hole 31, and cooperate with the support spring 33 to limit and fix the position of the laser 50, so that the laser 50 remains in a suitable position. When the first knob 32 is loosened, the support spring 33 will be in a rebound state. At this time, the support spring 33 will drive the laser 50 to move up relative to the horizontal plane to adjust the tilt angle of the laser 50. The above structure is simple and easy to install and disassemble.

[0032] In the present application, the support part 20 includes a sleeve 21, a support rod 22 and a second knob 23. The sleeve 21 and the support rod 22 are arranged in the vertical direction. The tapered hole 31 passes through the sleeve 21 in the horizontal direction. The first adjustment assembly is arranged in the sleeve 21. One end of the support rod 22 is rotatably connected to the sleeve 21, so that when the sleeve 21 rotates relative to the support rod 22, the laser 50 in the sleeve 21 can be driven to rotate. The second knob 23 is located between the support rod 22 and the sleeve 21. The second knob 23 can fix the relative position of the support rod 22 and the sleeve 21. The other end of the support rod 22 is connected to the second adjustment part 40 to drive the support rod 22 to rotate through the second adjustment part 40. Through the above arrangement, when the circumferential direction of the laser 50 needs to be adjusted, the second knob 23 is loosened, and the sleeve 21 is rotated relative to the support rod 22 to adjust the rotation angle. When it is adjusted to a suitable angle, the second knob 23 is tightened to abut the support rod 22 against the side wall of the sleeve 21, thereby fixing the adjusted circumferential position of the laser 50.

[0033] Further, the support portion 20 also includes a mounting seat 24, a first fastener 25 and a second fastener 26. Among them, the mounting seat 24 is arranged in the tapered hole 31, the mounting seat 24 is used to place the laser 50, the first fastener 25 is used to fix the position of the mounting seat 24 in the tapered hole 31, the first adjustment portion 30 is arranged between the mounting seat 24 and the sleeve 21, and the first adjustment portion 30 can adjust the inclination angle of the mounting seat 24. The second fastener 26 is arranged on the mounting seat 24, and the second fastener 26 is used to fix the position of the laser 50 in the mounting seat 24. Through the above arrangement, the mounting seat 24 can protect the laser 50 to prevent the first adjustment portion 30 from causing damage when adjusting the laser 50. And the mounting seat 24 can increase the contact area between the laser 50 and the first adjustment portion 30 and the sleeve 21, and further adjust the stability. Specifically, the mounting seat is provided with a stopper plate near the first end of the tapered hole 31, which is used to form a snap connection with the first end of the tapered hole 31 to limit the position of the mounting seat 24.

[0034] like Figure 3 As shown, the second adjustment part 40 includes a support 41, a mounting platform 42 and a second adjustment component. The support 41 is connected to the base 10 by fasteners, the mounting platform 42 is rotatably arranged on the support 41, the support part 20 is connected to the mounting platform 42, and the second adjustment component is used to adjust the rotation angle of the mounting platform 42 relative to the support 41 in the circumferential direction. Through the above arrangement, the rotation angle of the mounting platform 42 is adjusted by the second adjustment component, thereby driving the laser 50 on the support part 20 to rotate in the circumferential direction, so as to cooperate with the sleeve 21 to improve the accuracy of the circumferential angle adjustment of the laser 50.

[0035] In the present application, a connection seat 27 is also provided at the bottom end of the support rod 22, and the connection seat 27 is connected to the mounting platform 42 by fasteners. The connection seat 27 can be welded to the support rod 22 or formed in one piece. In this way, the contact area between the support rod 22 and the mounting platform 42 is increased, and the stability of the connection between the support rod 22 and the second adjustment part 40 is improved, so that the support rod 22 and the sleeve 21 are prevented from shaking or tipping when the second adjustment part 40 drives the support rod 22 to rotate, and the adjustment accuracy of the second adjustment part 40 to the laser 50 is ensured. Specifically, the second adjustment component includes a coarse adjustment rod 43 and a first stud 44, the coarse adjustment rod 43 is connected to the mounting platform 42, the coarse adjustment rod 43 can drive the mounting platform 42 to rotate, and the first stud 44 is arranged between the mounting platform 42 and the support 41, and the first stud 44 can fix the position of the mounting platform 42. Through the above arrangement, first manually adjust the coarse adjustment rod 43 to drive the mounting platform 42 to rotate and roughly adjust the circumferential rotation angle of the laser 50. After adjustment, tighten the first stud 44 to abut the first stud 44 against the mounting platform 42 to fix the adjusted position of the coarse adjustment rod 43.

[0036] The side wall of the mounting platform 42 is also provided with a limiting protrusion 47, and the second adjustment component also includes a fine-tuning screw 45 and a second stud 46, which are respectively located on both sides of the limiting protrusion, and the fine-tuning screw 45 and the second stud 46 are respectively threadedly connected to the support 41, one end of the fine-tuning screw 45 is used to abut against one side of the limiting protrusion 47, and one end of the second stud 46 is used to abut against the other side of the limiting protrusion 47, and the second stud 46 cooperates with the fine-tuning screw 45 to adjust and fix the rotation position of the mounting platform 42. Through the above arrangement, the fine-tuning screw 45 and the second stud 46 can respectively drive the limiting protrusion 47 to rotate in two opposite directions, thereby driving the mounting platform 42 to rotate. When the fine-tuning screw 45 drives the mounting platform 42 to adjust to a suitable position, the second stud 46 is tightened to make it closely abut against the limiting protrusion 47, thereby fixing the position of the limiting protrusion 47. When the second screw 46 is required to drive the mounting platform 42 to adjust in another direction, the position of the limiting protrusion 47 can be fixed by tightening the fine-tuning screw 45 , thereby fixing the position of the mounting platform 42 .

[0037] In the present application, the base 10 is a magnetic structure, and the side of the base 10 that contacts the object to be tested is set to an arc surface. This can improve the fit between the base 10 and the surface of the object to be tested, and improve the accuracy of the test results. In addition, there is no need to weld the device to the object to be tested, which avoids damage to the object to be tested. It can be directly adsorbed on the surface of the object to be tested, which is simple to operate, easy to carry, and saves installation time.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0040] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0042] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0043] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A straightness detection device, characterized in that: The straightness detection device comprises: A base (10) is used to fix the straightness detection device on the surface of the object to be measured; A support portion (20) is arranged on the base (10), and the support portion (20) is used to install a laser (50); A first adjustment portion (30) is arranged on the support portion (20), and the first adjustment portion (30) is capable of adjusting the tilt angle of the laser (50) on the support portion (20); The second adjusting portion (40) is arranged between the base (10) and the supporting portion (20), and the second adjusting portion (40) can drive the supporting portion (20) to rotate in a circumferential direction relative to the base (10).

2. The straightness detection device according to claim 1, characterized in that: The laser (50) extends in a horizontal direction, and the first adjustment portion (30) is capable of adjusting an inclination angle of the laser (50) relative to a horizontal plane.

3. The straightness detection device according to claim 2, characterized in that: The first adjustment portion (30) comprises a tapered hole (31) and a first adjustment component. The extension direction of the tapered hole (31) is the same as that of the laser (50). A gap exists between the laser (50) and the inner wall of the tapered hole (31). The tapered hole (31) has a first end and a second end which are arranged opposite to each other. The diameter of the tapered hole (31) gradually increases from the first end to the second end. The first adjustment component can adjust the inclination angle of the laser (50) in the tapered hole (31).

4. The straightness detection device according to claim 3, characterized in that: The first adjustment component comprises a first knob (32) and a support spring (33), the first knob (32) and the support spring (33) being respectively arranged on both sides of the laser (50), the first knob (32) being radially penetrated on the conical hole (31), the first knob (32) being arranged close to the second end, the support spring (33) being respectively in contact with the inner wall of the laser (50) and the conical hole (31), the first knob (32) being movable in the conical hole (31), and the first knob (32) and the support spring (33) being matched to adjust the tilt angle of the laser (50).

5. The straightness detection device according to claim 4, characterized in that: The support portion (20) comprises a sleeve (21), a support rod (22) and a second knob (23); the sleeve (21) and the support rod (22) are arranged in a vertical direction; the tapered hole (31) penetrates the sleeve (21) in a horizontal direction; the first adjustment component is arranged in the sleeve (21); one end of the support rod (22) is rotatably connected to the sleeve (21); the second knob (23) is located between the support rod (22) and the sleeve (21); the second knob (23) can fix the relative position of the support rod (22) and the sleeve (21); the other end of the support rod (22) is connected to the second adjustment portion (40).

6. The straightness detection device according to claim 5, characterized in that: The support portion (20) further comprises: A mounting seat (24) and a first fastener (25), wherein the mounting seat (24) is arranged in the tapered hole (31), the mounting seat (24) is used to place the laser (50), the first fastener (25) is used to fix the position of the mounting seat (24) in the tapered hole (31), the first adjusting portion (30) is arranged between the mounting seat (24) and the sleeve (21), and the first adjusting portion (30) can adjust the inclination angle of the mounting seat (24); A second fastener (26) is arranged on the mounting seat (24), and the second fastener (26) is used to fix the position of the laser (50) in the mounting seat (24).

7. The straightness detection device according to claim 1, characterized in that: The second adjustment portion (40) comprises a support (41), a mounting platform (42) and a second adjustment component, wherein the support (41) is connected to the base (10), the mounting platform (42) is rotatably arranged on the support (41), the support portion (20) is connected to the mounting platform (42), and the second adjustment component is used to adjust the rotation angle of the mounting platform (42) relative to the support (41) in the circumferential direction.

8. The straightness detection device according to claim 7, characterized in that: The second adjustment assembly comprises a coarse adjustment rod (43) and a first stud (44); the coarse adjustment rod (43) is connected to the mounting platform (42); the coarse adjustment rod (43) can drive the mounting platform (42) to rotate; the first stud (44) is arranged between the mounting platform (42) and the support (41); the first stud (44) can fix the position of the mounting platform (42).

9. The straightness detection device according to claim 8, characterized in that: The side wall of the mounting platform (42) is also provided with a limiting protrusion (47), and the second adjustment component also includes a fine-tuning screw (45) and a second stud (46), the fine-tuning screw (45) and the second stud (46) are respectively located on both sides of the limiting protrusion (47), the fine-tuning screw (45) and the second stud (46) are respectively threadedly connected to the support (41), one end of the fine-tuning screw (45) is used to abut against one side of the limiting protrusion (47), and one end of the second stud (46) is used to abut against the other side of the limiting protrusion (47), and the second stud (46) cooperates with the fine-tuning screw (45) to adjust and fix the rotation position of the mounting platform (42).

10. The straightness detection device according to claim 1, characterized in that: The base (10) is a magnetic attraction structure.

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